Cutting machine for globe construction



Nov. 18, 1930.

P. J. KING CUTTING MAGHINBFOR GLOBE 'coNsTRUcTIoN Filed Dec. 13, 1929 2 Sheets-Sheet l INVESTOR A'rroRNEYs,

Nov. 18, 1930. P. J. KING Y CUTTING MACHINE FOR GLOBE CONSTRUCTION Filed Dec. 1s, H:1929

2 Sheets-Sheet 2 0) E" 9INVNJOR mw' I JU ATTORNEYJ Patented y Nov. 18, 17930 maior. BRQQKLYN NEW vom:`

currnveirnonrivnron GLOBE'ooNs'rmrc'rroN' ppnsturmv -leqneeemb'er 13, 1929: serial No. 413,802.

rIlhis inventionrelatesto a; cuttingmachine usefulinainlyfy in; the construction.; off Ageox` graphical globes andtheglike.,A y i I The-mainobject is to `provide a machinefby Y i Whichfthegores.of-paperbeaningrespectively sections; ofthefglobe y,may-lue accurately fitted to the globe body. T /hismachine-isofpan ticular utility in the making of very high grade,geographicalglobes z g Inthe drawngs--- *Y v 4 n Fig; 1 is a planLvieW--ofmy machine'spant-lyY broken away.; i v i I. Fig. 2isa sideelevation'of the4 same5partl'y broken aW-ay-` y,L5 Fig: i3 is'r a side elevation conventionally illustratinga geographicalglobm l In the particularformfshown iin thevdravv ings, 1 represents What I willfterma table or mainsupport. f 2=fisea-bracket toward; the rear 2,10 ofV the table-andatf one'` side; for supportnga rotatableI trunnion 3 having a globefsupporting' nose\1().1l l? is a disk/on tliefrendof the trunnion 3, said: disk having recesses or holes 5 5 near the peripheral edge; ythe same '12,5 spaced equidistantrso vthat-thetrunnion may be stopped at evenlyjspac'ed points throughout its'full rotationby projecting anose 6 into the aforesaidnotches v5---5g respectively: 7

is anothery bracket at the other rean edge of thetable in line=-Withrthe` bracket, 2. y This bracket supports. a; spring-projected plunger 8-providing vwith-a globe suppntingnose-9 in linelwith the ynose 1'0; 11 is anoffset-on-andat theside ofv the trunnion. i l2fisfa1pinon off-- Y ,3.5 set 1'1, said: pin;` being; manually movable to and fro for the purposehereinafter described. v13 is a globe lbodyfor base upon Whichiis tobe mounted the mapzsections :which are'made in the form ofvfgor'es 14, each; gore preferably 49 beingshaped toapproximate the'contourto that. partofy the globe body on;` which they are to -be\secured;-` One edgeofeach of said gores isI preferably accurately; cut-A before being y appliedt-o the globe: The-other edgeofeach gore need'fnotrbe accurately-"cut beforehand, butis to be trimmed'orf cut-,off accuratelyafter the gore lhas been secured4v to the"vl globe body. The globe body 13 hasitwo cavities atthe two pole-ends; for receiving-thefnoses' 9*-10` and it 59 'algo hasza-perforationf` at oneside of oneofsaid y top and;V baclr of l the grooves 18449V respecis: turned ou its edgey and functioning ,pole'l'cavities foridre'ceiving the pin 12'.'

Wheuthe globe is in 'place and Athe trunnion 3 is rotated, thegrglobe-Will rotate with it, ,The table.- 1 e i'sfprovidedat its rear with propery clearance for the. globebody when the latter isin place. y The top ofthe table con` stitutesone for-mfof .a guide'` platform; fori a cutter, to belater described, sothat theisameI may bemovedabout on the, platform, close up tothe globe to trim or` cut the gore edges Vas'rvequired. `Altfvvill be understood vthatthe globe maybe madeofi any suitable material; The'cutterdevicecomprises.a main bodyl Which1 has asmooth flat. lower surfacedesigned to sl'idegsmoothly over thesmooth'iiat 65 topfsurface offthetablevwhich is made With suchiaccuracy that it Willbe in aplane paralleltothe pole axisfandf somewhat below the l horizontal-centralplane ofthe globe when the latter'isginipositi'om n 16 isythre cutting tool-,v vhich: isfinthis-instance in the form of aV fliskhavinga cutting edge. rDliis diskfisfmounted on apivot 17 with itsv rcuttings-edge positionedA at-` such v an Y elevationy above the table top that; it Willregisterfaceurately Withfthe pole axis ofthe globe onvaghorizontal centralplanewhenthe cutter biody'rest's iiatwisc onzthe table Ytop-` Y u l8f19lare guide grooves arranged inthe uppergfaceofthetable for properly positioning the cutterto out: or trim off thepo'le ends ofi thel gores.: `Thefcutter body is provided onoppositej'sidesfWithlribs5,one of which appearsat-20; These ribs are adapetd tot into theV guide grooves 18-19 when the cutting tool is 5 toffuuction inthe 'manner last referred''to. e l S22-'23 aregage plates mounted'respectivelyon theL brackets and 7 above'the table' tively.- Thesey plates/vy act as guidesfOr-the upperpartg-of'the-,cutter body-when the latter tocut off'thezpolefendsofthe gores. l f v In operation, a plain gl be ybody-fis first mounted on thecutting machine asindicated Y inthe"drawingsA On Ythe globe body;v pref Aerablyl'by the use ofthe cutting tool, may be accurately markedone or moreV meridian lines Y which faciiaaethe application Qffthe first wb g gore thereto in accurate position.. When the globe' is mounted as aforesaid and the ytrunnion locked against rotation, the operator .aflixes oneof the gores toi the globe body with a suitable adhesive, makingr sure that the accuratelyicutedge ofthe gore` is`posit-ioned accurately ona meridian'line. When the first gore is firmly affixed to the globe, the

Yoperator turns the trunnion 3 to a position wherein the gore edge that is' to be trimmed off is located in a plane parallelto the table top. He then placesthe'cutter device fiatwise on the table, asshown in Fig. 2,*so that by moving it around the adjacent surface of Vthe globe it will correctly trim, olf any inac- Y trimmed olf.' 'He' then trims loff the opposite 1 edge ofthe second mentioned' gore after rst turning'theglobe intoposition where the edge to be cut will face the knife of the cutter as before described. The operatorthen continues to afiix gore after gore to the globe body, trimming theinaccurately cut edge of each until the entire surface of the globe is covered, save at the extreme pole ends.

It is the practice to apply to the pole ends of the globes separate disks of paper 24F-25 Y with related parts of the globe printing therel opposite pole end, the cutter is shifted so on `and `to do this properly it is necessary that the ends of the gores be'trimmed olf accurately so vas toneatly and accurately re-` ceive these pole disks.

To trim off the upper pole end ofthe globe shown'in Fig. 1 of the drawings, the cutter body is placed on edge with one of the ribs in the groove 19 and with the cutter resting against the plate 23. The locking nose 6 is then retracted and held back byV any suitable means so that the globe body may be .i rotated freely. The cutter body is then pushed forward until the cutting` tool 16 will engage the gores just back of their pole ends.` By now'v rotating the globe, the cutter will accurately trim off these ends of the gores. 'l

To trim off theends of the gores at the thato'ne of the ribs 2() will stand in the guide groove. 18 while the back'of the body of the cutter will be-supported by the'V plate 22. In

- this position the cutting 'tool will face Vthe globe in the-properV position to trimoff the ends `of the 'gores. at ,the .adjacent pole end, this being accomplished in `the same manner as labovedescribed, namely, by'pushing the cutter Vforwardly against the gore ends and turning the globe body until all of the pole ends of the gores'lhavebeen cutoff. The

grooves 18-19 should, of course; `be located and occupy the same relation to 'their respective polesso that there will be no variation in the diameter of the trimmed off polar regions.

Y When this work is done, the plunger 8 is retracted and the globe is removed so that the two disks 24.-- of paper representing .the respective geographical poles, north and south, may be applied to the globe.

By the use of this invention, it is possible tocorrect each gore for any error of linear expansion due to the absorption of moisture from the adhesive [employed in aiiixing the gore to the globe body and also to automatically compensate by trimming each gore for any slight variation in exact spherical diameter or contour of the globe. It will furthermore be observed that by this instrument the globe body lmay be marked so as to divided-'the same into any number of corresponding divisions-or to mark off the globe longitudinally, should such marking be desirable for any purpose. By meansof this cutting mechanism, most accurate work may beperformed with little or no wastage and in a reasonably quick spacejof time. Furthermore, by the use of this machine a lesser Vdegree of skill and less time are required on the part ofthe operator in trimming the edges ofthe gores. Various changes and'modifications may be made in various features of construction without departurev from theiinvention.

What I claim is:

1: In a cuttingapparatusrof the character described, a guide platform, globe supporting ',means at the back of said platform, means whereby the globe may be rotated on its pole axis, means for locking said globe against rotation in certain predetermined positions, a cutting device comprising a body portion and a cutting tool,said cutting tool being movable onsaid platform in the plane of a globe meridian for the purpose of trimming longitudinally `gore pieces mounted on the globe when the globe is held in a fixed position, and means for supporting said cutting device with the blade at" substantially right angles to the guide platform to trim the pole ends of the gore piecesbv revolving the globe while the cutting tool bears against the pole ends `of said gore pieces.

2. In a cutting apparatus of the character described, a guide platform, globe supporting means at they back of said platform, means whereby the globe may be rotated on its pole axis, means forlocking said globe against rotation in certain predetermined p0- sitions, a cutting device comprising a body portion'and azcutting tool, said cutting tool being movableon said platform in the plane of ta globe meridian for the purpose of trimming longitudinally gore pieces mounted on the globe when the globe is held in a fixed position, Vmeans for supporting said cutting device in Ea; positiony at substantially right angles to said guide platform to trim the pole ends of the gore p iecesby revolving the globe While the cutting tool bears against the pole ends of said gore pieces, and `means to guide vthe cutting tool in a direction toward the globe When the pole'ends of said gores are rbeing cut.

3. Ina cuttingapparatus for a geographical globe construction, a guide platform 'i provided with a globe receiving contour and means for rotatably supporting a globe at its two opposite poles5` meansA for rotating said globe on its pole aXis, means for lock-vr ing said rotating means at differentprede- `termined positions for one operation and for releasing said rotating means for a different operation, a cutter `adapted to be moved along said guide platform partially around the globe on a meridian line from apoint near one pole to a point near the other pole While said globe is held stationary, said support also having gage means permitting said cutter to be moved toward and againstthe globeand held at a predetermined distance from the pole end While theglobe is being revolved. Y

4. In a cutting-apparatus for trimming gore sections mounted on a geographical globe comprising a. globe support for holding a globe on its pole axis, means to permit said globe to be freely turned for one operation; means to hold said globe at certain predetermined positions against being turned for another operation,

y a movable cutter,'and means' for supporting and vguiding said cutter in the direction to trim a gore on a globe along a meridian line While the globe is stationary and also tok'support said cutter in another `position to trim the ends of all the gorev sections on a line equidistant at all points from a pole end vof said globe While the latter is' f vbeing revolved. Y

PETER J. KING. 

